Is CVE-2026-42946 actively exploited?

No active exploitation of CVE-2026-42946 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-42946 be exploited remotely?

Yes. CVE-2026-42946 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2026-42946?

CVE-2026-42946 has a CVSS score of 6.5 (MEDIUM).

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MEDIUM

CVE-2026-42946

CWE-789Published: May 13, 2026· Updated: May 13, 2026

6.5

CVSS v3.1

EPSS:0.05%probability of exploitation in 30 daysPercentile:14.8th

Official Description

A vulnerability exists in the ngx_http_scgi_module and ngx_http_uwsgi_module modules that may result in excessive memory allocation or an over-read of data. When scgi_pass or uwsgi_pass is configured, an unauthenticated attacker with man-in-the-middle (MITM) ability to control responses from an upstream server may be able to read the memory of the NGINX worker process or restart it. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.

NVD Source

Technical Analysis

CVE-2026-42946 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in complete confidentiality breach (data exposure), with a CVSS base score of 6.5.